Amblyopia occurs when one eye does not have optimal vision, more often due to a turned eye (muscle problem) or a refractive error (vision problem) from childhood. There are some people who do not develop vision in one eye because of a problem with the retina, optic nerve, or the visual processing centre of the brain. Hence, birth defects or serious trauma to the eye as a child can lead to amblyopia. It sometimes is referred to as a “lazy eye”. The most common treatment for amblyopia is patching the stronger eye to allow the connection to develop between the brain and the weaker eye. For patches refer to http://www.eye-lids4kids.com.